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COGNIS, supplier of LIX®Reagents and inventor of copper solvent extracti(SX), has been the recognized market and technology leader for more thanyears. Independent studies show LIX® Reagents are 10 - 25% more efficiethan the competitive products and are used to produce over 60% of the woSX copper cathode.

The Mining Chemicals Technology business of Cognis is the only supplier capable of offering the full range of SX reagent technology (one-stop-shopping): Ketoximes, Aldoximes, Non-modifed Ketoxime/Aldoxime blendsand Fully/Slightly Modified Blends with alcohols, esters and other patented prorietary modifiers. This unique position makes all reagent technology available to our customers and allows Cognis to custom blend reagents, providing you with optimized metallurgical and physical performance at the lowest cost. No other supplier of SX reagents has this capability.

Teamwork with our customers produces superior results.

Our first priority is making sure you, our customer, succeed.

COGNIS OFFERS YOU MORE:

LIX®, Alamine®, Aliquat®, AuRIX®, Galactasol®, and EnviroWet® Reagents

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The Lowest Costs and only source for the full range of SX reagent technology

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A comprehensive MSP™ Minesite Services Program•Superior Computer Modeling with Isocalc® TM, Metcalc™ and Opti-Form™

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SX compatible Smoothing agents and Dust Control agents•ISO 9000 registry at all locations (production, R & D, and service facilitie•

Cognis Corporation - Solvent Extraand Services

Page 1 of 4Cognis Corporation - Solvent Extraction Reagents and Services - Mining Technology

1/22/2013http://www.mining-technology.com/contractors/chemicals/cognis-corp

LIX® REAGENTS

Recovery of Cu, Ni•Unsurpassed Cu/Fe selectivity•Unsurpassed copper recovery over wide copper, pH and temperature ranges

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Lowest cost, Highest quality•Lowest crud formation and entrainment values•Unsurpassed stability•

ALIMINE®/ALIQUAT® REAGENTS

Recovery of metal anion species from aqueous solutions•Extraction of U, V, Mo •

GALACTASOL™

Derivitized guar smoothing agents for electrowinning •

NEW PRODUCTS - AURIX® AND ENVIROWET®

AuRIX®: Solid and liquid reagents for the extraction of Au and Ag from cyanide solutions. Benefits: Smaller plants, better selectivity, lower costs

EnviroWet®: Unique wetting agents for dust control. Benefits: More compatible SX (Less tendency to form emulsions). Less toxic to iron oxidizibacteria

TECHNICAL SERVICE: MSP™ MINESITE SERVICES PROGRAM

The comprehensive, global MSP™ Minesite Services Program, consisting o26 elements, is customized to meet the specific needs of each customer.

RESEARCH AND DEVELOPMENT

Our global commitment to R&D and technical service is the leading source new and effective technology to help you succeed.

MANUFACTURING AND SERVICE FACILITIES

Cognis Ireland, Ltd. produces LIX Reagents in two, state-of-the-art plants using our patented production processes.

Production facilities for Cognis’ Alamine® and Aliquat® solvent extraction reagents are located in Kankakee, Ill.



NEW PRODUCTS AND SERVICES FROM COGNIS

First, Cognis has announced its line of LV or Low Viscosity copper solventextraction reagents. This line includes both non-modified and modified oximand all continue to be Low Density reagents. Both of these properties facilitate phase separation, reduce entrainment, and allow the use of LIX® Reagents up to 50 volume percent in the organic phase.

Next, Cognis is pleased to announce its Opti-Form™ optimum formulatsoftware. This software allows Cognis engineers to analyze each and everysolvent extraction circuit (PLS, pH, sulfate content, stripping conditions, staging requirements, etc.) and formulate the optimal blend of oximes and modifiers.

Next, Cognis announces its 'Flexible Circuit' and 'Optimum Series-Parallel' solvent extraction circuit flow sheets. Both can provide savings in capital anoperating costs when compared to convention circuit designs.

Finally, Cognis announces its latest version of Isocalc® TM isotherm and McCabe-Thiele modeling software. This latest version takes advantage of tmany formulations available from Cognis and it will accurately model the neOptimum Series-Parallel circuits.

Call your Cognis representative today for innovation, teamwork and value.

© 2001, Cognis Corporation LIX®, Alamine®, Aliquat®, AuRIX®, EnviroWet®, Isocalc®, Opti-Form™ anMSP™ are registered trademarks of Cognis Corporation. Galactasol® is marketed to the mining industry by Cognis Corporation. ® = registered U.S. Patent and Trademark Office

Contact Details

Cognis Corporation 2430 N Huachuca Drive Tucson Arizona 85745 United States of America Contact: Ms Elizabeth Martinez Tel: +1 520 629 3202 Fax: +1 520 624 0912 Email: [email protected]



URL: www.cognis-mct.com URL: www.cognis.com/countries/USA



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